54972913 has 2 divisors, whose sum is σ = 54972914. Its totient is φ = 54972912.

The previous prime is 54972899. The next prime is 54972937. The reversal of 54972913 is 31927945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54066609 + 906304 = 7353^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 54972913 - 2⁵ = 54972881 is a prime.

It is not a weakly prime, because it can be changed into another prime (54972613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27486456 + 27486457.

It is an arithmetic number, because the mean of its divisors is an integer number (27486457).

Almost surely, 2^54972913 is an apocalyptic number.

It is an amenable number.

54972913 is a deficient number, since it is larger than the sum of its proper divisors (1).

54972913 is an equidigital number, since it uses as much as digits as its factorization.

54972913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 40.

The square root of 54972913 is about 7414.3720570255. The cubic root of 54972913 is about 380.2328051740.

The spelling of 54972913 in words is "fifty-four million, nine hundred seventy-two thousand, nine hundred thirteen".